If the equilibrium exchange rate between U.S. dollars and Japanese yen is $0.01 = 1 yen, but currently the exchange rate is $0.009 = 1 yen, then with flexible exchange rates the dollar price of a yen will __________ and the yen will __________

The single-price monopolist shown in the above figure could increase its economic profit if

A) it became a price discriminator. B) its costs of production decreased. C) the demand for its good increased. D) any or all the above were to occur.

Assume that we want to drive our economy out of recession by generating a $400 billion change in national income. The MPC is 0.8 . Which of the following policy prescriptions would generate the targeted $400 billion change in income?

a. $120 billion increase in government spending and $50 billion increase in tax revenue b. $140 billion increase in government spending and $70 billion increase in tax revenue c. $160 billion increase in government spending and $120 billion increase in tax revenue d. $220 billion increase in government spending and $100 billion increase in tax revenue e. $400 billion increase in government spending and $300 billion increase in tax revenue